Showerhead



FIG. 1 is a perspective view of a showerhead showing our design;

FIG. 2 is a front elevation view;

FIG. 3 is a rear elevation view;

FIG. 4 is a side elevation view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view.

The broken-line disclosures in the view represents portions of the showerhead in which the claimed design is embodied, but which forms no part of the claimed design. 

CLAIM The ornamental design for a showerhead, as shown and described. 